Prassi Dvd Writer Software

[PIERCED]

I have an image on my hardrive which was written with Prassi DVD software and the extension is name.gi
I have installed the prassi software that came with my pioneer 104 and i`m running windows xp pro.

All i get is a Runtime error 9 everytime i try and run the software.
I have no probs with Prassi cd that works fine.

I have emailed the software manufacture for explanation and got jack out of them no reply or nothing (so much for customer support).

Does anyone know how i can get it working or if thier is another burner prog that will reconise the gi extention.
I tried to extract the file with isobuster but was unsucessfull as the file is split into 3 files, 2x2 gig and one 300k.

I tried to find s prog that will convert the image to another iso format but had no luck.

Thanks for ur time.